Sliding and reversing window



Filed ADI.

O B DREUSIKE SLIDING AND REVERSING WINDOW Apr. 3, 1923.

Patented Apr. 3, 1923.

OTTQJB. DREUSI-KE, OF SAN FRANGISCO, CALIFORNIA...

SLIDING AND REVERSINGk'WIN'DOWZ Applicationzfile'd ApriLG. L

To all 10 ham it may concern-,3

Be it known that I, O'r'ro B. DREUsIKE, ae itizenz of :theUnited-rStates,- and resident of ;the icity and ;county of San; Francisco, Statmof California, haverinvented new,- and usefullmpnovementsinzslidi ggal Revers ing -VVindows, of which, the, following is a specificatiom;

Mu. invention-1 is particularly adapted to: metal sash "frames and ,has;for; .its object the provisionzof means wherebythe window sashatuall times-is held against rattling or v1- brati-onz but. ;is free-to operate both, for1ra1s-, ing.and.;lowering,-or1;for turning to any de: sired degree-pas:for example; revers1ng, ,so thatrthe, ,weathersideof the window maybe cle'a-ned 'ifromythe 1 inside :of the room. a

The objects of :this invention :are the -.secuningof; thegreatest degree-of safety for washing the windomcombined. with SlIIllQllC-x ity, efficiency 10f. operation,-. perfect tracking and elimination of all vibration.

By referring to the accompanying drawings my invention will be made clear.

Fig. 1 shows a pair of sash mounted in a window frame employing my invention and shows diagrammatically the manner of hanging the sash.

Fig. 2 is a fragmentary showingof one of the sash in a partially tilted position, the inner side of the window frame being cut away for th purpose of showing the sash and its cooperating parts.

Fig. 3 is a detail front view of one side of one sash with its tracking mechanism shown in section and with the window turned into half reversed position and with the frame partly broken away.

Fig. 4 is a detail cross section of the upper and lower portions of the tracking mechanism showing the manner in whlch 1t operates to maintain perfect tracking at all times and is a full size showing of certain parts shown in Fig. 3.

Fig. 5 is a full size detail cross section of the sash pivot and its locking means.

Fig.6 is a front View of Fig. 5.

Fig. 7 is a full size cross section through the sash 2, track member 7 and shoe 9 in their position of alignment when the sash 1s in closed position, and is taken on the line Y II-VII of Figs. 1, 5.

Throughout the figures similar numerals refer to identical parts.

The window frame is shown by the numeral 1 in which are mounted the lower sash tends; through. the. opening 1921 Seria11No.:459,086.'

2 .jandi mpperzsash .3: whichare substantially duplicates :.of each other and which are each providedawith atrack'; bar 7, and, shoe 9, on each side, andare counterbalanced with respect .toueachothenby:being hung on the same cordsflorqchainsE4,25,Ioperating over pulleys at theitop of thewindow frame '1. I Each ofathecsash ::ispivoted. at-Iits center and on each slddbyyrpivotsindicated as at G and 31, tllQrSfiiClflPlViOtS being: supported in tracking .bars: as- 7.' The bars 7 areadapted toslide inuWaysx-S "and mounted. telescopically within each tracking ;bar: or slidemember 7 is the shoe 9,; whose face. 29,- at all times seats againsttheibottomof the ways 8 through the r actionrbf :theschain/Jc against 'certain of the parts..-'as.described -:below. The pivot 6 ex- 7 10 in the track member 7 and whenturned into .theposition asishown inziFig.-5,iatwhich timethe sash is substantially:horizontal, the flangeend 1 11 of the pivot 6 extends across the axis of the elongated opening 10. However, to insure the locking of the pivot 6 within the member 7, I provide the locking strip 12' which is mounted slidably against the inner wall of member 7 and held therein by the fastenings l3 and 14; with a permissible longitudinal movement provided by the slots 15, 16. In the front of the member 7, I provide a slot 17 and opposite thereto and within the range of the said slot the hole 18 so that a pointed instrument may be introduced into the hole 18 through the slot 17 and the lock plate 12, raised or lowered. In Fig. 6 the said plate is shown in its raised position and when depressed, as described, it advances over the shank of the pivot 6 to the dotted position shown at 19, at which time the lateral openings 10, through which the head 11 has been introduced are closed b the ears or projections 20, 21, so that the pivot 6 is securely locked to the slide member 7. The shoe 9, which slides within the member 7, see Fig. 7, is loosely linked thereto by the links 22, 23, which swing from pivots24, 25,. mounted in the shoe 9, and

pivot 27. The tension of the chain 4, caused by the weight of the sash 3, see Fig. 1, therefore forces the shoe 9 outwardly with a component of pressur derived from the chain tension acting on rivets 24, 25 in the shoe 9; thus insuring at all times pressure from the face 29 of the said shoe against the bottom of its way 8. It will now be seen that the mechanism above described secures at all times the proper guiding of the sash 2 by the shoes 9 and bars 7, by contact with the bottom of the ways 8. If the sash be suspended as shown in Fig. 1; that is, if member 2 and member 3 counterbalance each other, the rasing of the sash 2 is accompanied by the lowering of the sash 3; and at any time either of the sash may be rotated with respect to the window frame 1 and about its pivots as 6,. 31. To hold thesash in vertical alignment with the ways 8, during such times as they are not rotated, I form the member 7 and the cooperating side of the sash of convex and concave curvature, respectively, and make the shank 6 of the pivot sufiiciently long so that when the sash shown in posit on in big. 7, is rotated into position shown in Fig. 5 the concave face of the sash rides up on the convex face of the tracking member 7 by forcing the member 7 to move toward the bottom of its respective way 8, and causing the chain alto take the position shown in Fig. at. This introduces a friction element between the sash 2 and the member 7 sufficient to hold the sash in any position in which it is turned, and when it is turned into alignment with the member 7 the concave surface of sash 2 seats over the convex surface of member 7, thus locking the sash 2 in relative alignment with the member 7.

I claim:

In a window structure comprising a frame provided with a guideway, and a sash movable therealong; the combination with 'a stile ofsaid sash of a tracking bar slidable in said guide-way, and having a wall normally in contact with the adjacent Wall of said stile, one of said walls having a concave surface and the other a convex surface normally disposed therein; a headed pivot eX- i'iending from said convex surface into said concave surface and separably uniting said sash and said tracking bar, but permitting said tracking bar to move laterally in said guideway; and vertically sliding means carried by and conforming to said concave wall for straddling said pivot to prevent withdrawal of the same and relnforcing said concave wall adjacent to said pivot.

OTTO B. DREUSIKE. 

